Knuckle-joint for transmission-shafts



0. 0. STORLE KNUCKLE JOINT FOR TRANSMISSION SHAFTS.

APPLICATION F ILED JAN. ll. 1918M PatentedSept. 23, 1919.

l/Vl/EN TOR OLE o. STOIRLE, or TACO-MA, wjasiiino'ron'.

KNUCKLE-JOINT ron TRANsMxssIoNsHAr'Ts.

Specification of Letters Patent. Patented Sept-23, 1919.

Application filed January 11, 1918. Serial No. 211,374.

To all whom it may concern:

Be it known that I, OLii O. S'roRLn, a citizen of the United States, residing at Tacoma, in the county of Pierce and State of lVashing-ton, have invented new and useful Improvements in Knuckle-Joints for Transmission-Shafts, of which the following is a specification.

My invention relates to knuckle joints for transmission shafts for automobiles an other places where needed.

The objects of my invention are: first, to obtain'a knuckle joint with transmission pins revolving on a common center thus securing an easy movement and a durable joint; second, to provide a knuckle joint that is self lubricating and dirt proof; and third, to make an open knuckle joint having a smooth round ring with pins flush with its perimeter.

I attain these objects by means of the mechanism illustrated in the accompanying drawing in which Figure 1 is a side View of one fork of my improved knuckle joint with the" journal block or ring shown in section, said fork having stem and socket hearings to be inserted in and on similar bearing of the said rlng.

Fig. 2 is a bottom view of the ring complete.

Fig. 3 is a sectional view of the knuckle joint connected, with the cross pins and hearings on the same radial plane.

Fig. 4 is a horizontal section of Fig. 3 on the line &4 with inclosing lubricating and dirt proof chamber added.

Fig. 5 is vertical cross section of Fig. 3 on the line 5-5, and shows the construction of the journal ring or block.

Fig. 6 is a side view of the journal ring on line 66 of Fig. 4.

Fig. 7 is a side view of a modified form of the knuckle joint.

Fig. 8 is a top view of Fig. 7, and

Fig. 9 is a cross section of Fig. 7 on line 9-9, showing the construction of the round journal ring.

Similar numerals refer to similar parts in the several views.

The adjacent ends of the transmission shaft S are coupled together by a knucklejoint formed as follows: One end of the shaft is formed with a yoke or fork 1 the oppositely disposed members of which are form d, one with a so ket 3 and the her with a journal or stem 2. Interla'cin'g or interlocking with the yoke or fork is a block or ring 4 having on one face a'stem or ournal 6 to enter the socket 3 of thefork, and its opposite face formed with a socket 5 to receive the stem or journal 2 of the fork and the opposite sides of the block or ring are formed with registering holes 7 to receive a coupling pin 10. The adacent end of the other part of the shaft Sis formed with a yoke or fork 8 which may be of globular or semi-spherical form as illustrated in Figs; 3, ,4, and 5 and will be connected to the fork and rin of the other part of the shaft by thecoup in" pin 10, the ends of which will pass through the yoke or fork 8 as illustratedin'Figs; 4t and 5 and besecured by a pin 17. I

It will be observed that the fork 8 in Figs. 3 and 4 is of a" globular bell-shaped form about-which is smoothly fitted an annular collar 11 to which is attached a semispherical casing 12 iiiclosing the opposite fork 1. A spiral spring 13 about, the shaft S be cwee 'the shoulder of fork'1'and'casing'12 holds collar 11 closely fitted to the globular fork 8. The inclosuro thus made by the globular form 8 and the semispherical casing 12, as shown in Fig. 4:, forms an inclosme about the knuckle joint to be filled with a suitable lubricant through the screw hole opening 14. By means of the inclosure or lubricant chamber, the knuckle joint is made self lubricating and dirt proof. The exterior parts of the knuckle joint chamber being spherical and smooth makes a knuckle joint that can be used with safety in cx-" posed places.

It is to be observed that the form of the fork and journal ring is such that the knuckle joint will allow the shaft S to swing approximately 30 degrees from its alinement and will work freely and easily.

It is to be further observed that the cross pin 10 fits so closely to the stem member of the fork 1 that the stem and socket bearings of fork 1 are securely held in and on their respective bearings of ring 4. The stem and socket bearings being in the same radial plane with cross pin 10 gives the greatest freedom to the Working of the knuckle joint.

The construction for a modified form open knuckle joint is similar to the joint heretofore described and is illustrated by Figs, 7, s and 9, The fork l practically the ame comprising a fork having a socket in one member thereofand a stem projecting from' the opposite member of the fork, a ring cooperatively associated with the fork and formed'with a stemtoenter the socket of theifork member. and with a socket to re-' as in Fig. 1, the journal ring 4 has a smooth circular perimeter and the opposite fork 9 is made with two members 15 and 16 to slip inside of ring 4: to receive pin 10 with ends flush with the eXterior surface of ring '4. This provides a practically smooth round knuckle "joint that can be, operated with safety in exposedplaces.

Having thus described my invention I 1, A universal joint or shaft coupling member thereof and aistem projecting from the opposite member of the fork, a ring cooperatively associated with the fork and formed with a stem to enter the socket of the forkmember and with a socket to re ceive the stem of the other member of the forkfa yoke havingportions lapping the ring, and a coupling ,pin unitingthe ring,

and the yoke.

; 2. umvers'al joint or shaft coupling comprising a fork having a socket in one 'c'eive the stem ofcthe other member of. the

fork, a yoke cup-shaped inform andhaving con'tained therein the fork and the-ring, a coupling pin uniting, the ring, and the yoke,

Qonies ef this patent may he obtained for and a cup-shaped casing having a free connection with the yoke, said casing and yoke forminga housing and lubricating chamber for the inclosed members of the coupling.

3. A universal joint or shaft coupling comprising a fork having a socket in one member thereof and a stem projecting from the opposite member of the fork, a ring co operatively associated with the fork and formed with astem to enter the socket of the fork member and with a socket to rereive the stem of the other'member of the by fork, a yoke cup-shaped in form and having contained therein the fork and the ring, a

coupling, pin uniting the members of the the fork member and with a" socket to receive the stem of the other member of the fork, a yoke and a coupling'pin connecting the yoke to the ring. 7

OLE o, STORLE.

five cents each; by addressing the Commissioner of Patents, 1 Washington, D. 0. 

